#mask{
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    top: 0;
    left: 0;
}
#pop{
    width: 500px;
    height: 650px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    border-radius: 10px;
    padding: 20px;
}

.show,.show1{
    display: block;
}
.hide,.hide1{
    display: none;
}
.widt{
    width: 400px;
}

#changemask{
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    top: 0;
    left: 0;
}
#changepop{
    width: 500px;
    height: 650px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    border-radius: 10px;
    padding: 20px;
}